diff --git a/lab-python-data-structures.ipynb b/lab-python-data-structures.ipynb
index 5b3ce9e0..672599d6 100644
--- a/lab-python-data-structures.ipynb
+++ b/lab-python-data-structures.ipynb
@@ -50,13 +50,352 @@
     "\n",
     "Solve the exercise by implementing the steps using the Python concepts of lists, dictionaries, sets, and basic input/output operations. "
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 1. \n",
+    "\n",
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 2. \n",
+    "\n",
+    "inventory = {}"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Enter the quantity available for each product:\n"
+     ]
+    },
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Quantity of t-shirt:  5\n",
+      "Quantity of mug:  4\n",
+      "Quantity of hat:  7\n",
+      "Quantity of book:  8\n",
+      "Quantity of keychain:  9\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 3. \n",
+    "\n",
+    "print(\"Enter the quantity available for each product:\")\n",
+    "for product in products:\n",
+    "\n",
+    "    quantity = input(f\"Quantity of {product}: \")\n",
+    "\n",
+    "    # Repeat until the user enters a valid number\n",
+    "    while not quantity.isdigit():\n",
+    "        print(\"Please enter a valid number.\")\n",
+    "        quantity = input(f\"Quantity of {product}: \")\n",
+    "\n",
+    "    inventory[product] = int(quantity)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 4.\n",
+    "\n",
+    "customer_orders = set()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Enter the name of a product:  hat\n",
+      "Enter the name of a product:  book\n",
+      "Enter the name of a product:  mug\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 5.\n",
+    "\n",
+    "print(\"\\nEnter three products that the customer wants to order:\")\n",
+    "for i in range(3):\n",
+    "    order = input(f\"Enter product {i+1}: \").lower()\n",
+    "\n",
+    "    # Validate input: must exist in products list\n",
+    "    while order not in products:\n",
+    "        print(\"Invalid product. Please enter a valid product from the list.\")\n",
+    "        order = input(f\"Enter product {i+1}: \").lower()\n",
+    "\n",
+    "    customer_orders.add(order)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "Customer has ordered these products:\n",
+      "- hat\n",
+      "- book\n",
+      "- mug\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 6.\n",
+    "\n",
+    "print(\"\\nCustomer has ordered these products:\")\n",
+    "for item in customer_orders:\n",
+    "    print(\"-\", item)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 7.\n",
+    "\n",
+    "total_products_ordered = len(customer_orders)\n",
+    "percentage_ordered = (total_products_ordered / len(products)) * 100                           "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 8.\n",
+    "\n",
+    "order_status = (total_products_ordered, percentage_ordered)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 9.\n",
+    "\n",
+    "print(\"\\nOrder Statistics:\")\n",
+    "print(f\"Total Products Ordered: {order_status[0]}\")\n",
+    "print(f\"Percentage of Products Ordered: {order_status[1]:.2f}%\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "Updated Inventory:\n",
+      "t-shirt: 5\n",
+      "mug: 3\n",
+      "hat: 6\n",
+      "book: 7\n",
+      "keychain: 9\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 10.\n",
+    "\n",
+    "for item in customer_orders:\n",
+    "    inventory[item] -= 1\n",
+    "\n",
+    "print(\"\\nUpdated Inventory:\")\n",
+    "for product, qty in inventory.items():\n",
+    "    print(f\"{product}: {qty}\")\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Enter the quantity available for each product:\n"
+     ]
+    },
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Quantity of t-shirt:  3\n",
+      "Quantity of mug:  5\n",
+      "Quantity of hat:  7\n",
+      "Quantity of book:  8\n",
+      "Quantity of keychain:  9\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "Enter three products that the customer wants to order:\n"
+     ]
+    },
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Enter product 1:  haty\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Invalid product. Please enter a valid product from the list.\n"
+     ]
+    },
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Enter product 1:  hat\n",
+      "Enter product 2:  book\n",
+      "Enter product 3:  mug\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "Customer has ordered these products:\n",
+      "- hat\n",
+      "- book\n",
+      "- mug\n",
+      "\n",
+      "Order Statistics:\n",
+      "Total Products Ordered: 3\n",
+      "Percentage of Products Ordered: 60.00%\n",
+      "\n",
+      "Updated Inventory:\n",
+      "t-shirt: 3\n",
+      "mug: 4\n",
+      "hat: 6\n",
+      "book: 7\n",
+      "keychain: 9\n"
+     ]
+    }
+   ],
+   "source": [
+    "# 1. Define a list of products\n",
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "\n",
+    "# 2. Create an empty dictionary for inventory\n",
+    "inventory = {}\n",
+    "\n",
+    "# 3. Ask the user for quantity of each product\n",
+    "print(\"Enter the quantity available for each product:\")\n",
+    "for product in products:\n",
+    "\n",
+    "    quantity = input(f\"Quantity of {product}: \")\n",
+    "\n",
+    "    # Repeat until the user enters a valid number\n",
+    "    while not quantity.isdigit():\n",
+    "        print(\"Please enter a valid number.\")\n",
+    "        quantity = input(f\"Quantity of {product}: \")\n",
+    "\n",
+    "    inventory[product] = int(quantity)\n",
+    "# 4. Create an empty set for customer orders\n",
+    "customer_orders = set()\n",
+    "\n",
+    "# 5. Ask the user for 3 product orders\n",
+    "print(\"\\nEnter three products that the customer wants to order:\")\n",
+    "for i in range(3):\n",
+    "    order = input(f\"Enter product {i+1}: \").lower()\n",
+    "\n",
+    "    # Validate input: must exist in products list\n",
+    "    while order not in products:\n",
+    "        print(\"Invalid product. Please enter a valid product from the list.\")\n",
+    "        order = input(f\"Enter product {i+1}: \").lower()\n",
+    "\n",
+    "    customer_orders.add(order)\n",
+    "\n",
+    "# 6. Print the products ordered\n",
+    "print(\"\\nCustomer has ordered these products:\")\n",
+    "for item in customer_orders:\n",
+    "    print(\"-\", item)\n",
+    "\n",
+    "# 7. Calculate statistics\n",
+    "total_products_ordered = len(customer_orders)\n",
+    "percentage_ordered = (total_products_ordered / len(products)) * 100\n",
+    "\n",
+    "# 8. Store statistics in a tuple\n",
+    "order_status = (total_products_ordered, percentage_ordered)\n",
+    "\n",
+    "# 9. Print order statistics\n",
+    "print(\"\\nOrder Statistics:\")\n",
+    "print(f\"Total Products Ordered: {order_status[0]}\")\n",
+    "print(f\"Percentage of Products Ordered: {order_status[1]:.2f}%\")\n",
+    "\n",
+    "# 10. Update inventory: subtract 1 from ordered products and print\n",
+    "for item in customer_orders:\n",
+    "    inventory[item] -= 1\n",
+    "\n",
+    "print(\"\\nUpdated Inventory:\")\n",
+    "for product, qty in inventory.items():\n",
+    "    print(f\"{product}: {qty}\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python [conda env:base] *",
    "language": "python",
-   "name": "python3"
+   "name": "conda-base-py"
   },
   "language_info": {
    "codemirror_mode": {
@@ -68,7 +407,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.13.5"
   }
  },
  "nbformat": 4,